WBDE(SZ:002082) Zhong Guo Zhi Liang Xin Wen Wang·2026-02-27 08:12Core Viewpoint - The quality inspection of plastic pipe products in Hainan Province revealed that 2 out of 28 batches were non-compliant with usage requirements, specifically in dimensions, melting temperature, and oxidation induction time [2][4]. Group 1: Inspection Results - A total of 28 batches of plastic pipe products were inspected, with 2 batches found to be non-compliant [2]. - The non-compliant products included a PVC-U water supply pipe and a PP-R cold water pipe, with issues related to dimensions and melting temperature [5][6]. - The inspection adhered to multiple national standards, ensuring a comprehensive evaluation of various performance metrics [2]. Group 2: Implications of Non-Compliance - Non-compliance in dimensions may affect installation compatibility and pressure resistance, leading to potential issues such as rupture and leakage [3]. - Non-compliant melting temperature indicates defects in raw material formulation or production processes, which can compromise thermal stability and structural uniformity [3]. - A low oxidation induction time suggests insufficient antioxidant capacity, increasing the risk of aging degradation during processing, storage, or long-term use [3]. Group 3: Regulatory Actions - The non-compliant products will be handed over to the respective market supervision departments for legal processing [4].